Samsung Galaxy A20s 4GB/64GB

Samsung Galaxy M21 6GB/128GB

os

Android 9.0 (Pie); One UI

Android 10, One UI 2

RAM

4 GB

6 GB

ROM

64 GB

128 GB

expandable

1024 GB

512 GB

CPU

Octa-core 1.8 GHz Cortex-A53

Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)

GPU

Adreno 506

Mali-G72 MP3

SoC

Qualcomm SDM450 Snapdragon 450 (14 nm)

Exynos 9611 (10nm)

number of cores

8core

8core

features

LED flash, panorama, HDR

LED flash, panorama, HDR

primary

Triple:
13 MP, f/1.8, 27mm (wide), PDAF
8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12m
5 MP, f/2.2, (wide), 1/5.0", 1.12m, depth sensor

Triple:
48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8m, PDAF
8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12m
5 MP, f/2.2, (depth)

secondary

8 MP, f/2.0

20 MP, f/2.0, 26mm (wide)

video

4K@30fps, 1080p@30fps, gyro-EIS

Charging

Fast battery charging 15W

Fast charging 15W

capacity

4000mAh

6000mAh

type

Li-Polymer (non-removable)

Li-Polymer (non-removable)

SIM

Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)

build

Glass front (Gorilla Glass 3), plastic back, plastic frame

dimension

163.3 x 77.5 x 8 mm

159 x 75.1 x 8.9 mm

display

IPS LCD capacitive touchscreen, 16M colors, 103.7 cm2 (~81.9% screen-to-body ratio)

Super AMOLED capacitive touchscreen, 16M colors, 100.5 cm2 (~84.2% screen-to-body ratio)

protection

Corning Gorilla Glass 3

resolution

720 x 1560 pixels, 19.5:9 ratio (~264 ppi density)

1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)

screen

6.5"

6.4"

weight

183 gm

188 gm

GPS

Yes, with A-GPS, GLONASS, GALILEO, BDS

Yes, with A-GPS, GLONASS, BDS

USB

USB-C 3.0

2.0, Type-C 1.0 reversible connector

bluetooth

4.2, A2DP, LE

5.0, A2DP, LE

internet

2G/3G/4G/LTE

2G/3G/4G

wifi

Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot

Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot

radio

FM radio

FM Radio

sensors

Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass

Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass